infrastructure

This linear feature class is part of the Bureau of Transportation’s sidewalk system (the entire system consists of sidewalk, corners and curbs). Curbs not only provide the edge for the pedestrian network but they also channel water to the drainage system which helps preserve the street pavement. This dataset contains five types of curbs under the attribute CurbType. These first three types are actual curbs, most commonly constructed of concrete: Blockface (3110), Corner (3120) and Island (3130).

ArcGis Layer data for the City of Portland Benchmarks. All elevations are in COP datum. Locations are in NAD83/91, and are approximate. This data is updated regularly, so it should be re-downloaded on a regular basis (every 6mos-1yr).